[firebase_auth] Problem with shared session between native and flutter

[yoman07]

Hi,
I used before Firebase versions:

firebase_core: ^0.4.5 cloud_firestore: ^0.13.6 firebase_auth: ^0.16.1

I assume that flutter use the same FirebaseApp like native code. I tried to migrate to the versions:
firebase_core: ^0.7.0 cloud_firestore: ^0.16.0 firebase_auth: ^0.20.0+1

but there is a problem that Flutter firebase create different FIrebaseApp than native code [DEFAULT] instead of __FIRAPP_DEFAULT. Because of that probably session is shared between native code and flutter. I have authentication in native code .

How to solve the above case to have shared Firebase session between Native and Flutter code?